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Non-solvent addition induced self-organization for enhancement of performance of poly(3-hexylthiophene) organic field-effect transistors
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In order to enhance the performance of poly(3-hexylthiophene) (RR-P3HT) organic field-effect transistors (OFET) by low temperature solution-process of non-solvent addition (acetonitrile and ethanol), the resulting self-organization of polymer semiconductor layer and performance of RR-P3HT OFET are studied in this paper. The results fshow that an appropriate non-solvent addition (acetonitrile and ethanol) promotes the formation of more microcrystalline lamellae and improves the self-organization of polymer semiconductor layer, resulting in electrical properties enhancement of polymer OFET. The results indicate that the field-effect of RR-P3HT OFET with 5% acetonitrile addition can reach 3.39×10-3 cm2/V ·s, which is higher by a factor of 8 than that with 0% acetonitrile addition. Encessive non-solvent addition (acetonitrile and ethanol) leads to more precipitates which reduce microcrystalline lamellae and lowers the quality of polymer film, resulting in performance degradation of polymer OFET.
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Title: Non-solvent addition induced self-organization for enhancement of performance of poly(3-hexylthiophene) organic field-effect transistors
Description:
In order to enhance the performance of poly(3-hexylthiophene) (RR-P3HT) organic field-effect transistors (OFET) by low temperature solution-process of non-solvent addition (acetonitrile and ethanol), the resulting self-organization of polymer semiconductor layer and performance of RR-P3HT OFET are studied in this paper.
The results fshow that an appropriate non-solvent addition (acetonitrile and ethanol) promotes the formation of more microcrystalline lamellae and improves the self-organization of polymer semiconductor layer, resulting in electrical properties enhancement of polymer OFET.
The results indicate that the field-effect of RR-P3HT OFET with 5% acetonitrile addition can reach 3.
39×10-3 cm2/V ·s, which is higher by a factor of 8 than that with 0% acetonitrile addition.
Encessive non-solvent addition (acetonitrile and ethanol) leads to more precipitates which reduce microcrystalline lamellae and lowers the quality of polymer film, resulting in performance degradation of polymer OFET.
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